I am exaggerating slightly but not by much. For the past month, the amount of insulin my son needs to use to bring his hormone peaks down has exploded, increasing by about 5x. Yesterday, he had a peak at school that required 30 units to bring down. On a day with no peaks (which pretty much never happens) that is his TDD.
It is really difficult to bring such peaks down in a timely manner without some overcorrection.
[Translation: either it takes us a long time to bring them down or we are typically overcorrect and eat tons of carb, such as a meal’s worth)]